Last Modified: Dec 20, 2025
Affected Product(s):
BIG-IP Install/Upgrade, TMOS
Known Affected Versions:
17.1.3, 17.5.1.2, 17.5.1.3
Fixed In:
21.0.0
Opened: Sep 29, 2025 Severity: 2-Critical Related Article:
K000156885
Upon going to Local Traffic >> Policies : Policy List and selecting a policy that has actions defined, the following error is logged via the browser developer console. TypeError: can't access property "action", i.action is undefined t app.min.js:20 ActionTextController app.min.js:20 Angular 44 jQuery 5 angular.js:15717:16
- This issue prevents the BIG-IP administrator from being able to view detailed information about the LTM Policies via the configuration utility. - BIG-IP administrator is also unable to edit pools or virtual servers from the drop-down list when selecting an action to forward traffic for the LTM policy rule.
- LTM Policies and actions are configured. - The LTM Policies are viewed in the configuration utility (web UI)
Use TMSH to view or edit LTM Policies. Alternatively, install an engineering hotfix with the fix, available from the MyF5 Downloads site: - Hotfix-BIGIP-17.1.3.0.210.11-ENG.iso - Hotfix-BIGIP-17.5.1.3.0.192.19-ENG.iso K4918: Overview of the F5 critical issue hotfix policy https://my.f5.com/manage/s/article/K4918
The LTM Policies correctly render in the configuration utility.